Table 3.

The correlation of each pair of elements.

Variable	by Variable	Correlation (r)	Significant Probability (P)
As	Al	−0.0128	0.7618
Cd	Al	−0.0419	0.4375
Cd	As	0.0671	0.2800
Cr	Al	0.1314	0.0391*
Cr	As	0.0096	0.8769
Cr	Cd	−0.1235	0.0462*
Cu	Al	−0.0206	0.7785
Cu	As	−0.0320	0.6833
Cu	Cd	0.1380	0.0771
Cu	Cr	−0.1920	0.0135*
Hg	Al	−0.0397	0.5867
Hg	As	0.1105	0.0801
Hg	Cd	−0.0883	0.1622
Hg	Cr	0.1125	0.0745
Hg	Cu	−0.0658	0.4009
Mn	Al	0.0182	0.7995
Mn	As	−0.0364	0.6428
Mn	Cd	0.0877	0.2624
Mn	Cr	−0.0761	0.3315
Mn	Cu	0.2906	0.0002*
Mn	Hg	0.1968	0.0113*
Ni	Al	0.0462	0.4432
Ni	As	−0.0094	0.8804
Ni	Cd	0.0206	0.7401
Ni	Cr	0.5954	<0.0001*
Ni	Cu	−0.0075	0.9242
Ni	Hg	−0.0006	0.9930
Ni	Mn	−0.0297	0.7050
Pb	Al	0.0224	0.6615
Pb	As	0.0229	0.7133
Pb	Cd	−0.0029	0.9621
Pb	Cr	0.0983	0.1132
Pb	Cu	−0.0270	0.7306
Pb	Hg	0.0731	0.2477
Pb	Mn	0.2218	0.0042*
Pb	Ni	0.1423	0.0214*
Se	Al	−0.1521	0.0362*
Se	As	0.0645	0.4104
Se	Cd	−0.1296	0.0970
Se	Cr	−0.0776	0.3216
Se	Cu	−0.1245	0.1112
Se	Hg	−0.0629	0.4220
Se	Mn	−0.0623	0.4268
Se	Ni	−0.1393	0.0744
Se	Pb	−0.0723	0.3560